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Sat, 07 Nov 2026 19:19:33 -0800 (PST) Received: from localhost ([50.175.87.158]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2ed815e7416sm1411875ad.17.2026.11.07.19.19.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 07 Nov 2026 19:19:32 -0800 (PST) Date: Sat, 7 Nov 2026 19:19:31 -0800 From: Chris Down To: Greg Kroah-Hartman , Tejun Heo Cc: Johannes Weiner , Michal =?iso-8859-1?Q?Koutn=FD?= , Serge Hallyn , driver-core@lists.linux.dev, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-team@meta.com Subject: Re: [PATCH] kernfs: Build paths in linear time with respect to depth Message-ID: References: X-Mailing-List: cgroups@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: User-Agent: Mutt/2.3.3 (9073d26d) (2026-06-12) Chris Down writes: >Fixes: 3abb1d90f5d9 ("kernfs: make kernfs_path*() behave in the style of strlcpy()") >Cc: Note, I am not sure whether this is worthy of stable. But I have noticed that in some cases this build time can be pretty substantial with these locks held. But on the other hand it has been like this for quite a while, so maybe it doesn't matter :-)